Benefits of rooftop photovoltaics

1. In summer, it can effectively reduce the temperature in the house; The construction of a photovoltaic power generation system on the roof will basically cover all the roofs, so that the sun does not hit the roof directly in summer, the temperature is naturally not so high, and the air conditioning electricity bill is less.

2. Can save electricity costs: the electric energy generated by your own rooftop photovoltaic power generation system can be used by your own house, so that you don't have to spend money to buy electricity.

3, can make money by selling electricity: generally as long as the slightly larger roof construction of the photovoltaic power generation system, the generated electric energy is inexhaustible, then the remaining electricity can be provided to the grid to sell to the country, so that there is a small income every day.

4. Small input cost: the scale of their own rooftop photovoltaic power generation system is very small compared with those centralized large-scale photovoltaic power plants, generally tens of thousands of yuan, more than hundreds of thousands of yuan, can be all built, including their own use and grid connection costs.

5. Fast return on cost: Through Hebei Shuobiao's research for so many years, under normal circumstances, the cost of rooftop photovoltaic power generation is paid back in 4-6 years, while the service life of a rooftop photovoltaic power generation system is about 25 years, so compared with other input industries, the return is relatively fast.

6, energy conservation and emission reduction: although each of us is a very small individual, but also to bear the responsibility of energy conservation and emission reduction, a small rooftop photovoltaic power generation system with an installed capacity of 3 kilowatts, 25 years can generate electricity about 90,000 kWh, equivalent to saving 37 tons of coal, reducing carbon dioxide emissions is about 95 tons.

Disadvantages of rooftop photovoltaics

1. The bracket is not firmly installed, and in windy weather, the photovoltaic panels and other accessories in the photovoltaic power generation may be scraped off, and it is easy to hit people.

2. The difference between winter and summer power generation is relatively large, and only about 20% of summer in winter.

3. Although the return on cost is relatively fast, there is still a cost.

4. If the rooftop photovoltaic power generation system does not install components that store electric energy, then the electricity generated during the day cannot be stored until the night use.